A great ground look at what’s happening in Hawaii, the state where energy costs the most and where there is plenty of solar energy. Over 12% of Hawaiians have solar power which is 20x the US national average. If you count all the rooftops on Oahu together, Solar is a 300MW plant that is more than double the size of the next biggest plant on the island.

The problem is: That power plant dies when the sun goes down and the other plants have to crank way back up. expand full story